You damn right it was the right decision. Not just the double turn, but going into Payback there was a recent trend in WWE PPV's.
Going into Payback we knew we were going to get good wrestling, but judging from recent PPV events I don't think many of us seriously expected much more than that. We were throwing around theories that "Oooh, Jericho's going to be a Paul Heyman guy now!" or "Hey, don't miss Orton finally turning heel", but none of us would be surprised if this PPV didn't give us any real interesting content. ESPECIALLY the Ziggler/Del Rio match. Going into it we all thought "Ho, hum, we'll get some damn good wrestling, then a fluke Ziggler win that nobody will care about" before getting back to fapping over Punk's return.
There's something to be said for unpredictability, I'll be looking forward to a WWE PPV a lot more knowing that something could come out and surprise us, especially after that didn't happen at all last year. Ziggler lost the title reign nobody cared about but gained a lot of fan support from the great storytelling, and for the first time ever ADR is getting something resembling a reaction (although I'll still mock him for fun). I'm skeptical as to whether or not it'll work in the long run but at least for now these two characters came out smelling like a rose.